Cotton tramper



March 18, 1930. E. A. HOLMGREEN COTTON TRAMPER Filed Aug. 4, 1928 2Sheets-Sheet -l March 18, 1930. E. A. HOLMGREEN 1,751,332

COTTON TRAMPER Filed Aug. 4, 1928 2 Sheets-Sheet 2 i Patented Mar.

EUGENE QHOLMGREEN, or sAN ANTONIO, TEXAS v coTToN TRAMPER i Applicationfiled August 4, 1928. Serial No. 297,490.

This invention relates to improvements in packing or tramping machines,and more particularly to cotton trampers for use in baling cotton. Theinvention consists in cer'- V tain improvements in the mechanism for op`erating the tramper, whereby aV rigid ma#y chine is provided. Intrampers now 1n use a series of chains carrying crank pins ispropaelernwThe vsupporting beams 10.and 11.

videdv through which a reciprocating movement is secured bythepinstravelingwith the chain. This construction results-in greatuncertainty in the alignment; and action `of j the pins and theirconnections.. MyV construcf tion aids to correct this uncertainty byintroducinga positive moving'connectionthat will alwaysfunction inastraight line, and

hence notgbe subject to uncertain movements.

Referring to the accompanying drawings,

which are made apart hereof and on which similar reference charactersindicate similar parts, e y

Figure 1 is a side elevation of my tramper,

Figure 2 isa planview partly in section,y

the section being taken on line2-2 of Fig. 1,

Figure 3 is a vertical section showing thetramperandoperatingconnection,

Figure 4 is an end elevation looking toward the left of Fig. 1,

' Figure 5,V a parti l plan view with the tramper beam shown in section,and

Figure 6 is a view similar to Fig. 5, of a modilied form.

My device is mounted upon two parallel beams 10 and 11, preferably ofsteel or casteV iron, held'together'by suitable cross braces.

Supporting standards 12 and'13 are mounted in a vertical position uponthe base and are held in an upright position by braces 14 -and 1,5. Theupright members12 and 13 provide guides forthe reciprocatingV cross headwhich operates the tramper or, packer. These guides consist of rodswhich'have reducedthreaded ends, the lower end passing through a flangein 'the beams and. having nuts 16thereon and the upper en d passing intoand through a top casting 17 and having ,nuts 18 thereon. Thestandards12 andv 13 have steel lugs 19 and 20welded near the upper ends,Yor otherwise V'secured thereto.

The 'supporting braces 14 Vand l5`ar'e hollowk v 47 which providebearings for a shaft 48-car l and have rods 21 extending therethrough.

Nuts 22 and '23 secured on the ends ofjtheA rodsholdthesupportingrbraces 14` and 15V in position. The lowerL end of thebraces 14- and 15 preferably seat in sockets 24 in lugs. whicharewelde'dto the'top of the beams 10 and 11. This structure provides arigid support for the. standards which 'carry the have bearings'25, 26and 27 welded thereon,v 60 i /or otherwisesecured. These bearings carry1;

shafts 28, 2 9v and 30.y Upon these shaftsVV arey secure'ddriving gears31, 32 and Uponf the outer end of the shaft 28 is mounteda' pulley orother suitable means for receiving power from an engine or othersuitable source of'powennot shown. The gear wheels 33 have cranl; pins35. These crank r`pins carry one endv of connectingrods 36a nd 37.- 'lThe connecting rods are held upon the crank pins bolts 38 which passthrough the'cranlr` pins and secure thereon-washers 39. The con-`nectingrodbearing is composed of twomem-i bers 40,and 41. These membersare heldvftogether by the long U-bolts or otherwise, which pass aroundcross head pins 62and 63 on the cross head 43: This cross-head carriescast; ings 44 and 45v which slide vupon the guides 12 and 13.. Thecastingsalsohave lugs 46 and lrying a guide roller 49. The cross headalso carries a pinion 50 mounted upon a shafty 51.-;- A standing beam orrack 52 is secured upon a cross brace on the beams 10-and11. This ,f

standing vbeam hasa seriesof bars 53 secured'v 85 l in holes'in theVlianges `ofthe beam.k These, bars providea rack on one side of the beamwhichvis enga-ged bythe teeth'on the pinion 5Q. The tramper 54 is madeof a beam'similar to the standing rack1beam52, and-has rods55.securedinthe flanges on the beam correspondingv to those on thestanding beam 52. The lower end of the tramper beam 54 has arectangularblock 56 securedgthereupon, and

kthis rectangular block has slats 57 secured '95rr onits underside.Secured to the under side,y of the beams 10 and' 11 `are brackets 58 and59;'5

yThese brackets engage the flanges of the., y beam 54 and guideit.during. ;reciprocation.".V 'Thecasting 17 has bolts 60 and 6lthreaded `V10o bolts 60-and 61 are preferably welded tothe therethrough,the nuts 60 and 61 allowing an endwise adjustment of the bolts. The

This form providesmeans for varyngthe.

length of the tramper stroke. In this form, instead of the pinion'50, Iuse a pinion 64 which meshes with the bars on the beam 52 only. On theouter ends of the shaft which carries the pinion 64 I mount pinions of alarger diameter which mesh with bars 66 eX- tendingvbeyond the outersides of the flanges on the beam 54. Vertical movement of the crossheadin this form will move the tramper through a distance somewhat greaterthan twice that through which the pinion 64 y moves. By changing therelative size of pinions 64 and 65 the length of the stroke of f thetramper may be regulated as desired.

`If desired, the pinion 65 mayV engage the stationary beam* and thepinion 64 the tramper beam `so that the tramper-stroke will bellessthandouble the stroke of the cross head. Y Y

The operation of thevdevice is as follows:

VPower is applied to the pulley 34 which drives-the shaft'28, andthrough the medium" of gears 31, 32 and 33'the connecting .1 rods 36 arereciprocated, and in turn they reciprocate cross head 43. rIhe pinion 50rotat'ably secured on a shaft through the cross head vengages the racks53 and 55 on the stationary beam 52 and the movable beam 54respectively. Since the beam 52 cannot -move, vertical movement of thecross head willrotate the pinion to .move the tramper beam 54 verticallythrough a distance twice that through which the cross head travels. Byusing the formfshown in Figp, the

...tramper may 'be' caused to move through a distance more or less thantwice that through which the crosshead travels. Y The roller 49 engagesbetween the flanges on the rear side of the tramper beam 54 and holds itin posi- -.Ltion. VLu'gs 58 and 59 guide the lower end of the tramperbeam during its vertical re- Y ciprocation.

The U-bolts 42 which pass around the upper lend of the crank pins 62 and6B take'the strain off the bearing mem bers 40 and 41 and distribute itbetween the two crank pins. The Usbolts 42 also carry some of the strainwhich otherwise would be put 'upon the connecting rods 36 and 37.

While I have shown and described my invention as applied to a cottontramper, it

should beapparent that it need not be limited to this use.V It may findutility iny devices where specially long strokes of a plunger aredesired with a short stroke operating plunger, such for example as thepis` ton or plunger in a cylinder. Among possible ields of utility wouldbe as a hay press or a pumping jack for raising water, oil or otherliquid, since the tendency in modern practice now is toward longerstrokes in malmy device without departing from the spirit of theinvention, and I, therefore, do not limit myself to what Vis shown inthe drawings and described in the specification, but only as set forthin the appended claims.

I-Iaving thus fully described my said invention, what I claim as new anddesire to secure by Letters Patent, is:

l. A tramper comprising a base, posts vertically mounted upon said base,a stationary beam mounted vertically upon said base and secured at itsupper end to the upper end of the said posts, a cross head mounted'forvertical reciprocation upon said posts,a tramper beam having rack teethon one sidepositioned in guides upon said base, a guide'roller upon saidcross head 'engageable by said tramper.

beam, the said cross head having a pinion engaging the teeth of thetramper beam on one side and having the other side engaging rack teethon the said stationary beam, a plurality of gears rotatably mounted uponsaid base, a connecting rod secured to a crank pin on one of said gearsand to a pin on the said cross head, and means forrotating the saidgears to vertically reciprocate the said cross head and the saidtramper, substantially as set forth.

2. A cotton tramper comprising a base, a driving shaft and a drivenshaft mounted upon said base, a pinion mounted upon the driven shaft,idle pinions forming driving connection between the driving' shaft vandthe driven shaft, a plunger mounted for vertical reciprocation, a vpairof posts vertically mounted upon the said base, a pair of vI- beamshaving racks on their inner sides one of said I-beams being rigidlymounted upon the said base and the other having a tramper shoe on itslower end and being mounted for vertical reciprocation, a pinionpositioned to have its opposite sidesin engagement with the racks on theI-beam, a piston' rod connecting the last named pinion with the pinionon the driven shaft, substantially as set forth.

3. A cotton. tramper comprising a base, vertical guide posts mountedupouthe base, supporting braces for the guide posts, a cross headmounted to slide upon ,the posts, a

tramper mounted `for vertical reciprocation between the posts, lanI-beam vertically.V

mounted upon the base, the said I-beam hav ing bars secured in itsflanges along oneside to provide 'a rack, a second I-beam secured to thetrampervand securedto permit vertical reciprocation this I-beam havingbars secured in its flanges to provide a rack corresponding to the rackin the rst named I- beam, a pinion mounted between the I-beams havingits teeth in engagement with the vracks on each beam, a driving andadriven shaft rotatably mounted in the said base, a pinion on the drivenshaft, a pistonconnecting the ybeam vertically mounted upon thesaidzbase,

said beam having a series of racks on one side, a cross head mounted forvertical reciproca tion between the-said posts, a second beam having atramper mounted upon its lower end the said beam having rack bars on oneside, a pinion mounted upon the said cross'lhead between the said beamsand having Vits teeth in engagement with the racks on the said beams,and means for reciprocating the said cross head whereby the pinionbetween the said beams will move the tramper through a l distancegreater than that: through which the pinion moves, substantially Yas setforth.

y 5. A tramper comprising a base, posts very tically mounted upon saidbase, a stationary beam mounted vertically upon said base and secured atits upperV endto the upper end of the saidposts, a cross head mountedfor vertical reciprocationrupon said posts, a tramper'v beam having rackteethon one side positioned y in guidesy upon said base, thefsaid crosshead having a pinion; engaging the teeth of the stationary beam on oneside and being operp atively connected to rackteeth on the said tramperbeam, a plurality of gears rotatably mounted upon saidbase, a connectingrod secured'to a crank pin on one of said gears and to a pin on thesaid'cross head, and means for rotating the said gears to verticallyreciprocate the cross head and the said tramper beam, substantially asset forth.

`In witness whereof, I have hereunto set my hand at San Antonio, Texas,this 23d A day of July, A. D. nineteen hundred and twenty-eight. EUGENEA. HOLMGREEN.

